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authoreroen2013-07-24 01:11:57 +0200
committereroen2013-07-24 01:11:57 +0200
commit55c218020baebaa4230bfdad9a488bfe496361d7 (patch)
treed4adc2af87b6c60a1f9f9f4a96985489e1f52ace /echoboom-fuse.py
downloadechoboom-fuse-master.tar.gz
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initial example codeHEADmaster
Diffstat (limited to 'echoboom-fuse.py')
-rwxr-xr-xechoboom-fuse.py99
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diff --git a/echoboom-fuse.py b/echoboom-fuse.py
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+++ b/echoboom-fuse.py
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+#!/usr/bin/env python2.7
+
+# Copyright (C) 2006 Andrew Straw <strawman@astraw.com>
+#
+# This program can be distributed under the terms of the GNU LGPL.
+# See the file COPYING.
+#
+
+import os
+import stat
+import errno
+# pull in some spaghetti to make this stuff work without fuse-py being
+# installed
+try:
+ import _find_fuse_parts
+except ImportError:
+ pass
+import fuse
+from fuse import Fuse
+
+
+if not hasattr(fuse, '__version__'):
+ raise RuntimeError, \
+ "your fuse-py doesn't know of fuse.__version__, probably it's too old."
+
+fuse.fuse_python_api = (0, 2)
+
+hello_path = '/hello'
+hello_str = 'Hello World!\n'
+
+
+class MyStat(fuse.Stat):
+
+ def __init__(self):
+ self.st_mode = 0
+ self.st_ino = 0
+ self.st_dev = 0
+ self.st_nlink = 0
+ self.st_uid = 0
+ self.st_gid = 0
+ self.st_size = 0
+ self.st_atime = 0
+ self.st_mtime = 0
+ self.st_ctime = 0
+
+
+class HelloFS(Fuse):
+
+ def getattr(self, path):
+ st = MyStat()
+ if path == '/':
+ st.st_mode = stat.S_IFDIR | 0755
+ st.st_nlink = 2
+ elif path == hello_path:
+ st.st_mode = stat.S_IFREG | 0444
+ st.st_nlink = 1
+ st.st_size = len(hello_str)
+ else:
+ return -errno.ENOENT
+ return st
+
+ def readdir(self, path, offset):
+ for r in '.', '..', hello_path[1:]:
+ yield fuse.Direntry(r)
+
+ def open(self, path, flags):
+ if path != hello_path:
+ return -errno.ENOENT
+ accmode = os.O_RDONLY | os.O_WRONLY | os.O_RDWR
+ if (flags & accmode) != os.O_RDONLY:
+ return -errno.EACCES
+
+ def read(self, path, size, offset):
+ if path != hello_path:
+ return -errno.ENOENT
+ slen = len(hello_str)
+ if offset < slen:
+ if offset + size > slen:
+ size = slen - offset
+ buf = hello_str[offset:offset + size]
+ else:
+ buf = ''
+ return buf
+
+
+def main():
+ usage = """
+Userspace hello example
+
+""" + Fuse.fusage
+ server = HelloFS(version="%prog " + fuse.__version__,
+ usage=usage,
+ dash_s_do='setsingle')
+
+ server.parse(errex=1)
+ server.main()
+
+if __name__ == '__main__':
+ main()